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Roman K.

@topcreator100

monthly-level-four.svg
5,0
12
5,5
5,5
92%

Full Stack Developer

$35 USD /timme
Flagga för
Ukraine (5:25 fm)
Gick med april 16, 2021
$35 USD /timme
High Speed, User Friendly, 100% Completeness! Customer's Satisfy is my happiness! My background as a Web Developer, along with my education in Computer Science, have allowed me to attain a strong foundation of technical skills. I am a Full Stack Development Expert and work on Java(Spring MVC, JSF, Vaadin, JavaFX, J2EE/Java EE, JSP, Servlets), JavaScript(React.js, Vue.js, Angular, Node.js/Express.js, Sails.js), Python(Flask, Django), and PHP (Laravel, CodeIgniter, Symfony, CakePHP). Here are my core skills: 1. Front-end - core web: HTML5, CSS3, JavaScript, JSON/XML - JavaScript Frameworks: React.js/Redux, Vue.js/Vuex, Angular, TypeScript, Next.js, Nuxt.js, Styled Component - JavaScript Libraries: jQuery, DOJO toolkit, D3.js, Pixi.js, Three.js, [login to view URL], AOS, Chart.js, Popper.js, etc - UI Frameworks: Bootstrap, Material UI, Ant Design, Semantic UI, Vuetify, Element, etc 2. Back-end - JavaScript: Node.js/Express.js, Sails.js and Koa.js - Python: Flask, Django - PHP: Custom PHP, Laravel and CodeIgniter, Symfony, CakePHP - Database: MongoDB, MySQL, PostgreSQL and SQLite3 Here is my experience: - Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model - Thorough understanding of React.js, Vue.js and their core principles - Experience with popular React.js, Vue.js workflows (such as Flux, Redux or Vuex) - Knowledge of Back-end development on Node.js(Express.js, Sails.js and Koa2.js), Python(Flask, Django) - Experience with Database programming and management(MongoDB, MySQL, PostgreSQL) - Familiarity with newer specifications of EcmaScript - Experience with data structure libraries (e.g., Immutable.js) - Familiarity with RESTful APIs - Knowledge of modern authorization mechanisms, such as JSON Web Token - Familiarity with modern front-end build pipelines and tools - Experience with common front-end development tools such as Babel, Webpack, NPM, etc. - Ability to understand business requirements and translate them into technical requirements - A knack for benchmarking and optimization - Familiarity with code versioning tools {{such as Git, SVN, and Mercurial}}
Verifikationer
I tid
100 %
Inom budget
100 %
Godkänn taxa
88 %
Återkommande uppdragsfrekvens
20 %

Portfolio

Portfolio

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Ändringar sparade
5.0 · 12 Reviews
Omdömen
Använd avatar
Roman did an exceptional job testing my app. He was tasked with following different steps in the user journey and accomplishing key tasks on the platform, he completed the tasks much faster than the other developers to whom I assigned the same job. He was the fastest, most dedicated, and most communicative developer I worked with. If you're looking for a serious and professional developer with years of expertise and always looking to overdeliver to clients then look no further and hire Roman.
Louis M.
@LouisMille
Flagga för
Péronne-en-Mélantois, France
sex dagar sedan
Dela
L
All was OK. Nice work, good communication.
Lucas B.
@LucasBal33
Flagga för
, France
tio dagar sedan
Dela
M
Load template $200 USD
Great work. Very skilled developer.
Jason M.
@mccloyjason9999
Flagga för
San Ysidro, United States
en månad sedan
Dela
A
Other team members struggled giving him access at first. Took about a week (into a 3 week project). He requested more money for the project after agreeing to it and was given access. Then asked again for bonus after completing. Then said he had personal issues/matters and couldn't complete the project. So I'm rating based on that though I can't rate his expertise as I haven't seen it.
Anthony K.
@akaii123
Flagga för
Toronto, Lebanon
en månad sedan
Dela
M
load laravel site $280 USD
Great work, as always. Very talented developer.
Jason M.
@mccloyjason9999
Flagga för
San Ysidro, United States
två månader sedan
Dela
Erfarenhet
Senior Frontend Developer
aug., 2020 - dec., 2023
3 år, 4 månader
Dasera, CA, United States
aug., 2020 - dec., 2023
3 år, 4 månader
Set up Next.js projects, including configuring dependencies, project structure, and environment variables. Developed reusable and modular UI components using React. Implemented state management solutions like Redux and React Context API for managing application-wide state and data flow. Utilized Next.js features for server-side rendering (SSR) and static site generation (SSG) to improve performance, SEO, and user experience.
aug., 2020 - dec., 2023
3 år, 4 månader
Senior Web Developer
mars, 2017 - maj, 2021
4 år, 2 månader
RockPeaks, Toronto, Canada
mars, 2017 - maj, 2021
4 år, 2 månader
I worked remotely for RockPeaks and MusicPeaks. While working for RockPeaks and MusicPeaks, I gained experience in building React projects. React.js, Next.js, TypeScript, Styled Components, GraphQL, Ant Design, Material UI, React Bootstrap, Web3.js, etc
mars, 2017 - maj, 2021
4 år, 2 månader
Frontend and Backend Developer
mars, 2015 - feb., 2017
1 år, 11 månader
Medici Bank, San Juan, United States
mars, 2015 - feb., 2017
1 år, 11 månader
I worked remotely for Medici Bank International LLC. While working for Medici Bank, I gained experience with Node.js, Sails.js, jQuery, Bootstrap, CSS3, etc.
mars, 2015 - feb., 2017
1 år, 11 månader
Utbildning
Kyiv National Economics University
2005 - 2009
4 år
Bachelor
Flagga för
Ukraine
2005 - 2009
4 år
Certifikat
P
Preferred Freelancer Program SLA
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